Releasable trailer door lock

Abstract

A system of locking a door is disclosed. The system according to the present invention comprises a releasable keeper that secures a door locking mechanism to keep a door secured to an enclosure in a locked position. A release mechanism that is operated from the interior of the enclosure releases the releasable keeper from the enclosure and enable the door to be opened and prevents people from becoming trapped within the enclosure by a locked door. In an exemplary embodiment, the release mechanism is operated by a lever that operates a pulley system to disengage the release mechanism from the releasable keeper.

1. A trailer door lock attached to a trailer comprising:
 a door locking mechanism located on an exterior side of a body defined by the trailer engaging a releasable keeper attached to the trailer wherein the releasable keeper comprises a removable block that slidingly engages into the body; 
 a release mechanism connected to the releasable keeper and configured to release the releasable keeper from the trailer to enable the door locking mechanism to be disengaged from the releasable keeper and; 
 a lock pin return spring coiled around a lock pin and configured to apply pressure to the lock pin to keep the lock pin engaged within the releasable keeper. 
 
   
   
     2. The trailer door lock attached to a trailer of  claim 1 , wherein the release mechanism further comprises a pressure applicator in communication with the lock pin. 
   
   
     3. The trailer door lock attached to a trailer of  claim 1 , wherein the release mechanism is a keeper/cam release mechanism. 
   
   
     4. The trailer door lock attached to a trailer of  claim 1 , further comprising a release device connected to the release mechanism. 
   
   
     5. The trailer door lock attaching to the trailer of  claim 1 , wherein the removable block is flush with the body when slidingly engaged to the body. 
   
   
     6. A trailer door lock attached to a trailer comprising:
 a door locking mechanism located on an exterior side of a body defined by the trailer engaging a releasable keeper attached to the trailer wherein the releasable keeper comprises a removable block that slidingly engages into the body; 
 a release mechanism connected to the releasable keeper and configured to release the releasable keeper from the trailer to enable the door locking mechanism to be disengaged from the releasable keeper and; 
 a release device connected to the releasable keeper by a pulley system. 
 
   
   
     7. A trailer door lock attached to a trailer comprising:
 a releasable keeper comprising a removable block that slidingly engages into a body defined by a trailer; 
 a door locking mechanism located on the exterior of the trailer engaging the releasable keeper; 
 a release mechanism connected to the releasable keeper; and 
 a release device connected to the releasable keeper by a pulley system. 
 
   
   
     8. The trailer door lock attached to a trailer of  claim 7 , wherein the removable block is flush with the body when slidingly engaged to the body. 
   
   
     9. The trailer door lock attached to the trailer of  claim 8 , wherein the release mechanism comprises a lock pin engaging the removable block. 
   
   
     10. The trailer door lock attached to a trailer of  claim 7 , wherein the release mechanism is a keeper/cam release mechanism. 
   
   
     11. A locking system attached to an enclosure with interior and exterior sides defining a body comprising:
 a first door locking mechanism located on the exterior side; 
 a first releasable keeper comprising a removable block slidingly engaging the body and connected to the first door locking mechanism, wherein the removable block is flush with the body when slidingly engaged to the body; 
 a first release mechanism connected to the first releasable keeper; 
 a release device located on the interior side connected to the first release mechanism; and 
 a pulley system connecting the release device to the first release mechanism and the second release mechanism. 
 
   
   
     12. The locking system of  claim 11 , wherein the first release mechanism is oriented horizontally. 
   
   
     13. The locking system of  claim 11 ,wherein the first release mechanism comprises a lock pin engaging the first releasable keeper. 
   
   
     14. The locking system of  claim 11 , further comprising a lock pin return spring coiled around the lock pin. 
   
   
     15. The locking system of  claim 11 , wherein the first release mechanism comprises a keeper/cam system. 
   
   
     16. The locking system of  claim 11 , wherein the first releasable keeper comprising a removable block and a second releasable keeper comprising a removable block are both rectangular in shape. 
   
   
     17. The locking system of  claim 11 , further comprising a second door locking mechanism located on the exterior side, a second release mechanism connected to a second releasable keeper comprising a removable block slidingly engaging the body, wherein the release device is connected to the first release mechanism and the second release mechanism and the second releasable keeper comprising a removable block is flush with the body when slidingly engaged to the body. 
   
   
     18. A trailer comprising:
 a body with interior and exterior sides; 
 a door with interior and exterior sides attached to the body; 
 a releasable keeper comprising a rectangular removable block that slidingly engages the body; 
 a door locking mechanism attached to the exterior side of the door engaged to the releasable keeper; 
 a release mechanism connected to the releasable keeper; 
 a release device connected to the release mechanism; and 
 a pulley system connecting the release device to the release mechanism. 
 
   
   
     19. The trailer of  claim 18 , wherein the removable block is rectangular. 
   
   
     20. The trailer of  claim 18 , wherein the release mechanism comprises a keeper/cam system.